de.fub.bytecode.classfile
Class LineNumberTable

java.lang.Object
  |
  +--de.fub.bytecode.classfile.Attribute
        |
        +--de.fub.bytecode.classfile.LineNumberTable

All Implemented Interfaces:

java.lang.Cloneable, Node

public final class LineNumberTable

extends Attribute

This class represents a table of line numbers for debugging purposes. This attribute is used by the Code attribute. It contains pairs of PCs and line numbers.

Version:

$Id: LineNumberTable.java,v 1.4 2001/06/25 07:58:16 dahm Exp $

Author:

M. Dahm

See Also:

Code, LineNumber

Fields inherited from class de.fub.bytecode.classfile.Attribute

constant_pool, length, name_index, tag

Constructor Summary

LineNumberTable(int name_index, int length, LineNumber[] line_number_table, ConstantPool constant_pool)

LineNumberTable(LineNumberTable c)

Method Summary

void	accept(Visitor v) Called by objects that are traversing the nodes of the tree implicitely defined by the contents of a Java class.
Attribute	copy(ConstantPool constant_pool)
void	dump(java.io.DataOutputStream file) Dump line number table attribute to file stream in binary format.
LineNumber[]	getLineNumberTable()
int	getSourceLine(int pos) Map byte code positions to source code lines.
int	getTableLength()
void	setLineNumberTable(LineNumber[] line_number_table)
java.lang.String	toString()

Methods inherited from class de.fub.bytecode.classfile.Attribute

clone, getConstantPool, getLength, getNameIndex, getTag, setConstantPool, setLength, setNameIndex

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

LineNumberTable

public LineNumberTable(LineNumberTable c)

LineNumberTable

public LineNumberTable(int name_index,
                       int length,
                       LineNumber[] line_number_table,
                       ConstantPool constant_pool)

Method Detail

accept

public void accept(Visitor v)

Called by objects that are traversing the nodes of the tree implicitely defined by the contents of a Java class. I.e., the hierarchy of methods, fields, attributes, etc. spawns a tree of objects.

Overrides:

accept in class Attribute

Parameters:

v - Visitor object

dump

public final void dump(java.io.DataOutputStream file)
                throws java.io.IOException

Dump line number table attribute to file stream in binary format.

Overrides:

dump in class Attribute

Parameters:

file - Output file stream

getLineNumberTable

public final LineNumber[] getLineNumberTable()

Returns:

Array of (pc offset, line number) pairs.

setLineNumberTable

public final void setLineNumberTable(LineNumber[] line_number_table)

Parameters:

line_number_table. -

toString

public final java.lang.String toString()

Overrides:

toString in class Attribute

Returns:

String representation.

getSourceLine

public int getSourceLine(int pos)

Map byte code positions to source code lines.

Parameters:

pos - byte code offset

Returns:

corresponding line in source code

copy

public Attribute copy(ConstantPool constant_pool)

Overrides:

copy in class Attribute

Returns:

deep copy of this attribute

getTableLength

public final int getTableLength()